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Diffstat (limited to 'sources/shiboken2/libshiboken/helper.cpp')
-rw-r--r-- | sources/shiboken2/libshiboken/helper.cpp | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/sources/shiboken2/libshiboken/helper.cpp b/sources/shiboken2/libshiboken/helper.cpp new file mode 100644 index 000000000..9709d0776 --- /dev/null +++ b/sources/shiboken2/libshiboken/helper.cpp @@ -0,0 +1,142 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of PySide2. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "helper.h" +#include <stdarg.h> + +namespace Shiboken +{ + +bool sequenceToArgcArgv(PyObject* argList, int* argc, char*** argv, const char* defaultAppName) +{ + if (!PySequence_Check(argList)) + return false; + + if (!defaultAppName) + defaultAppName = "PySideApplication"; + + // Check all items + Shiboken::AutoDecRef args(PySequence_Fast(argList, 0)); + int numArgs = PySequence_Fast_GET_SIZE(argList); + for (int i = 0; i < numArgs; ++i) { + PyObject* item = PySequence_Fast_GET_ITEM(args.object(), i); + if (!PyBytes_Check(item) && !PyUnicode_Check(item)) + return false; + } + + bool hasEmptyArgList = numArgs == 0; + if (hasEmptyArgList) + numArgs = 1; + + *argc = numArgs; + *argv = new char*[*argc]; + + if (hasEmptyArgList) { + // Try to get the script name + PyObject* globals = PyEval_GetGlobals(); + PyObject* appName = PyDict_GetItemString(globals, "__file__"); + (*argv)[0] = strdup(appName ? Shiboken::String::toCString(appName) : defaultAppName); + } else { + for (int i = 0; i < numArgs; ++i) { + PyObject* item = PySequence_Fast_GET_ITEM(args.object(), i); + char* string = 0; + if (Shiboken::String::check(item)) { + string = strdup(Shiboken::String::toCString(item)); + } + (*argv)[i] = string; + } + } + + return true; +} + +int* sequenceToIntArray(PyObject* obj, bool zeroTerminated) +{ + AutoDecRef seq(PySequence_Fast(obj, "Sequence of ints expected")); + if (seq.isNull()) + return 0; + + Py_ssize_t size = PySequence_Fast_GET_SIZE(seq.object()); + int* array = new int[size + (zeroTerminated ? 1 : 0)]; + + for (int i = 0; i < size; i++) { + PyObject* item = PySequence_Fast_GET_ITEM(seq.object(), i); + if (!PyInt_Check(item)) { + PyErr_SetString(PyExc_TypeError, "Sequence of ints expected"); + delete[] array; + return 0; + } else { + array[i] = PyInt_AsLong(item); + } + } + + if (zeroTerminated) + array[size] = 0; + + return array; +} + + +int warning(PyObject* category, int stacklevel, const char* format, ...) +{ + va_list args; + va_start(args, format); +#if _WIN32 + va_list args2 = args; +#else + va_list args2; + va_copy(args2, args); +#endif + + // check the necessary memory + int size = vsnprintf(NULL, 0, format, args) + 1; + char* message = new char[size]; + int result = 0; + if (message) { + // format the message + vsnprintf(message, size, format, args2); + result = PyErr_WarnEx(category, message, stacklevel); + delete [] message; + } + va_end(args2); + va_end(args); + return result; +} + +} // namespace Shiboken |